Potassium oxalate was evaluated as a new activating agent for preparation of kenaf core-based activated carbons. The preparation conditions were optimized through Box–Behnken design (BBD) to maximize I₂ and methylene blue (MB) adsorption values. Two quadratic models were developed to correlate the preparation variables namely activation temperature, impregnation ratio and activation time for both responses. The activated carbon produced at the optimum combination of process parameters showed 1161 mg/g and 330 mg/g of I₂ and MB uptakes, which were in excellent agreement with the predicted values from the models. Porosity parameters and scanning electron microscopy were used to investigate the obtained optimal sample. The results reveal that K₂C₂O₄ could be recommended as a promising effective activating agent for producing activated carbons from kenaf core with high surface area and potentially desirable dye removal capacity.

草酸钾被评估为用于制备基于洋麻核心的活性炭的新型活化剂。通过Box–Behnken设计（BBD）优化了制备条件，以最大化I ₂和亚甲基蓝（MB）吸附值。开发了两个二次模型以关联制备变量，即两种反应的活化温度，浸渍率和活化时间。在工艺参数的最佳组合下产生的活性炭显示I ₂和MB吸收量为1161 mg / g和330 mg / g ，这与模型的预测值非常吻合。用孔隙度参数和扫描电子显微镜研究获得的最佳样品。结果表明，K ₂ C ₂可以推荐使用O ₄作为一种有前途的有效活化剂，用于从洋麻芯中生产具有高表面积和潜在所需染料去除能力的活性炭。